DIFF Main Group
D01D 4/00 Spinnerette packs; Cleaning thereof (, D01D5/24, D01D5/253, D01D5/28 take precedence)
Introduced: January 1980
Title
Titles differ between systems:
IPC: Spinnerette packs; Cleaning thereof
CPC: Spinnerette packs; Cleaning thereof (, D01D5/24, D01D5/253, D01D5/28 take precedence)
Full Title
Full titles differ between systems:
IPC:
Spinnerette packs; Cleaning thereof
CPC:
Spinnerette packs; Cleaning thereof (, D01D5/24, D01D5/253, D01D5/28 take precedence)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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- D01D 4/04 Cleaning spinnerettes or other parts of the spinnerette packs (cleaning in general B08B) since 1980 IPC+CPC Available in IPC and CPC
- D01D 4/06 Distributing spinning solution or melt to spinning nozzles since 1980 IPC+CPC Available in IPC and CPC
- D01D 4/08 Supporting spinnerettes or other parts of spinnerette packs since 1980 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class D01,2013–2023, worldwide · Source: EPO PATSTAT
- NATIONAL DONG HWA UNIVERSITY 1,242
- MASCHINENFABRIK RIETER CH 1,162
- TORAY INDUSTRIES JP 1,093
- TORAY INDUSTRIES 802
- JIANGNAN UNIVERSITY 771
- WUHAN TEXTILE UNIVERSITY 663
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
- CHINESE ACADEMY OF SCIENCES 559
- LENZING AT 525
- MURATA MACHINERY 492
Top Applicants (CPC)
Class D01,2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 1,268
- MASCHINENFABRIK RIETER CH 1,200
- NATIONAL DONG HWA UNIVERSITY 955
- LENZING AT 602
- P&G (PROCTER & GAMBLE COMPANY) US 594
- WUHAN TEXTILE UNIVERSITY 494
- TRUETZSCHLER & COMPANY DE 453
- KOLON INDUSTRIES KR 433
- OERLIKON TEXTILE & COMPANY DE 430
- CHINESE ACADEMY OF SCIENCES 412